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प्रश्न
What is a pulley?
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उत्तर
It is a flat circular disc with a groove in its edge and a rope passing through the groove. It is capable of rotating around a fixed point passing through its central axis called axle.
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संबंधित प्रश्न
A boy uses a single fixed pulley to lift a load of 50 kgf to some height. Another boy uses a single movable pulley to lift the same load to the same height. Compare the effort applied by them. Give a reason to support your answer.
State two functions of a machine.
Differentiate between a single fixed pulley and a single movable pulley.
Define the following term in reference to a gear system for Gear ratio ?
Give reason for the following:
In a single fixed pulley, the velocity ratio is always more than the mechanical advantage.
The mechanical advantage of an ideal single movable pulley is ______.
In the case of a block and tackle arrangement, the mechanical advantage increases with the number of pulleys. Explain.
A type of single pulley is very often used as a machine even though it does not give any gain in mechanical advantage. For what purpose is such a pulley used?
What is a pulley?
A pulley is a machine made up of a ______.
